Brain Balancing Pattern between Left and Right Frontal Using Mean Relative Power Ratio Via Three Dimensional EEG Model

This paper discusses on power spectral density (PSD) characteristics extracted from three-dimensional (3D) electroencephalogram (EEG) model for different brain balancing indexes. EEG recording was conducted on 51 healthy subjects. Development of 3D EEG model involves pre-processing of raw EEG signals and construction of spectrogram images. The resultant images which are two-dimensional (2D) were constructed via Short Time Fourier Transform (STFT). Optimization, color conversion, gradient and mesh algorithms have been implemented to produce 3D EEG model. Then, maximum PSD values were extracted as features from the model. These features were analyzed using mean relative power (MRP) ratio to observe the pattern among different brain balancing indexes. The results show that by implementing MRP ratio technique, the pattern of brain balancing indexes can be clearly observed. Some patterns are indicates between index 3, index 4 and index 5 using MRP ratio, MRP ratio gap pattern and difference mean relative (DMRP) ratio for left frontal (LF) and right frontal (RF).